/iblai-history-tab

Add the agent History tab -- conversation history with rating, summaries, topic tags, and filters (user, date range, sentiment, topics). Includes conversation preview, pagination slot, and optional export. This is one tab in the wider agent-settings family. All tabs share the same AgentSettingsProvider wrapper.

Do NOT add custom styles, colors, or CSS overrides to ibl.ai SDK components. They ship with their own styling. Keep the components as-is. Do NOT implement dark mode unless the user explicitly asks for it.